Fabric and article



Patented Sept. 16, 1924.

UNITED STATES PATENT OFFICE.

CAMILLE DREYFUS, OF BASEL, SWITZERLAND, ASSIGNOR TO THE AMERICAN CEIrLULOSE & CHEMICAL MFG. 00., LTD., OF NEW YORK, N: Y., A CORPORATION OFDELAWARE.

FABRIC AND ARTICLE.

No Drawing.

To all whom it may concern:

Be it known that I, CAMiLLE DREYFUs, a citizen of Switzerland, and aresident of Basel, Switzerland, have invented a certam new andusefulImprovement in Fabrics and Articles.

It is a known fact that ribbon or other fabrics made with a mixture ofnatural silk and cotton or other non-silk materials, such as cotton,wool, etc., cannot be subjected to the process of weightingadvantageously, as the cotton or the other materials associated w th thenatural silk absorb the material used for weighting the silks, such astin salts. In this way it is practically impossible to subject silk incombination with cotton or other materials economically to a weightingprocess afl'ecting thesilk only, or if it is done the result of theweighting is not successful.

I have now found that when ribbons or any other mixed fabrics, whichcontain silk mixed or associated with cotton yarns, or threads whichhave been impregnated with a permanent impregnation or finish, such asacetate of cellulose, are subjected to the weighting process, theweighting of the silk in the mixed fabric can be executed in a veryeconomical and very successful way without absorption of weightingmaterial by the cotton, or with the absorption of only a small quantity.Instead of using cotton yarn in conjunction with silk, yarns or threadsof wool or other suitable non-silk material can be used, and instead ofusing Application filed December 22, 1921. Serial No. 524,277.

cellulose acetate impregnated yarns or threads for association with thesilk, yarns can be or threads of non-silk material can be used whichhave been impregnated with cellulose esters, cellulose ethers or othercellulosic products, or other suitable products, leaving a suitablepermanent finish in the yarn.

What I claim and desire to secure by Letters Patent is: v

1. Ribbons and other fabrics comprising silk threads associated withthreads of other material, said non-silk threads only being providedwith a resistant dressing of cellulosic derivative whereby they aresubstan tially immune to weighting.

2. Ribbons and other fabrics comprising silk threads associated withthreads of other material, said non-silk threads only being providedwith a resistant dressing of cellulose acetate whereby they aresubstantially immune to weighting.

3. Ribbons and other fabrics comprising silk threads non-immune toweighting, associated 'with threads of cotton provided with a resistantdressing of cellulosic derivative whereby they are substantially immuneto weighting.

4. Ribbons and other fabrics comprising silk threads non-immune toweighting, associated with threads of cotton provided with a resistantdressing of cellulose acetate whereby they are substantially immune toweighting.

' CAMILLE DREYFUS.

